package com.shengzai.rdd

import org.apache.spark.rdd.RDD
import org.apache.spark.{SparkConf, SparkContext}

object Demo11SumScore {
  def main(args: Array[String]): Unit = {
    val conf = new SparkConf()
    conf.setMaster("local")
    conf.setAppName("Filter")
    val sc = new SparkContext(conf)
    val scoreRDD: RDD[String] = sc.textFile("hadoop_code/src/data/score.txt")

    val mapRDD: RDD[(String, Int)] = scoreRDD.map(
      line => {
        val split: Array[String] = line.split(",")
        (split(0), split(2).toInt)
      }
    )

    val resRDD: RDD[(String, Int)] = mapRDD.reduceByKey((x, y) => x + y)

    resRDD.foreach(println)

  }

}
